Socket shell or casing



Ell

Apr. lll, i925.

need

Unirse srnres PATENT orrlcs.

TONES A, TH, 0E STRATFQRS), CONNECTICUT, ASSXGNR T0Y THEVCONNECTICUT EL 'CTPJC ll/IANJFACTURNGCOMPANY, 0F BRDGEIPORT, CONNECTICUT, A CORF- IPORATIGN 0F CONNECTICUT.

- f LL OR CJASING. j

Application filed; July 2%?, 1920. Serial No. 399,751..

To @Zt 107mm vh muy Concern:

lle it known that I, Tormes A. Born, a citizen of the United States, residing, at trattord, county ot Fairield, State of Gonnecticut, have invented an Improvement in tioclret whells or Casings, ot which the tollo C' a specification.

This invention'relates to the class of metaliic shells or casingrs for electricv sockets `and the like #which comprise a cap portion and fa body portion and which are adapted to be quickly and easily connected and dis'- connect-ed and are 'further adapted to be locked n. :ed relation `with respect to each other when connected,1and the object ot the invention is to provide a novel connectionbetu'cen the cap and body portion ot the shell. l

lVith this object in view, l have devised a novel socket shell or casina'v which consists ot a cap portion provided with notches and protuberances and abody portion provided Vwith bayonetA slots and a spring thumb latch, the protubcrances ot the cap being adapted, when the cap and body are connected, to ene ge the Walls t the bayonet slots, Vand the spring thumb latch oit the body portion Y, q adapted to [it in Vone of the notches ot the cap to insure the position ot the protuberances in the bayonet slots.

ln the aCionipanyingidrawing forming a part oit this specification,

L 1 is an eleva-tion oit a lzey socket shell in which the features ot the invention are incorporated;

Fig. 2 a perspective view the shell ot Fig. 1;

3 perspective view of the body of the shell of 1;

Fig, Ll: an elevation of a` keyless socket shell in `which Jdie features oi the invention are incorporated;

perspective view of the cap of shell oit d, disclosing variant forms ol" jnotuberances; and

Fig. G is a perspective vieu' of the body olf the shell olI Fig. Il, showing the manner oiE the cap or" in `which the keyless socket is out away to one of the notches in the cap.

vided Wit-h notches 12 and with struck in projections 18. The'notchcs, as Well as the struck in projections are preferably located diametrically opposite eachother', as shown.

The body is cut away as indicated aty 1e .to

make provision for the shankot the -key, as will he understood, and is provided with bzfiyonet slots which arelilrewise preferablyv located dianietrically opposite each other. Thebody is also cutaway to provide an `opening,".16 through Which the 4springtlnirnb .latch 1s adapted to project, and is: struck in,l as denoted at 17,i to provide a -slot 18 to receive aportion of a plate .which is shaped as vnew to be described to provide,

the spring thumb latch.

The plateotv the invention', shown, more clearlyin Fig. 3, consist-s otra U-shaped plate .of metal. One arm ot theQU-shaped plate, denotedv by 19, is Vstraifht and is ot proper size to lit slot 18, While the other arm, denoted by 20, is bent substantially as shown to provi-de a spring thumb latch 21 which isV of proper size to protrude through the openingdenotedby 16,1in'the body ot the socket shell. j

To assemble the cap and body with each other, the cap is moved over the body so that the struck in projections pass through the portions of the bayonet slots denoted by 22. rEhe cap and body are next slightly turned with respect to each other until the struck in projections are .in the otset portions, denoted by 23, of the bayonet slots and the spring` thumb latch has sprung into It will be obvious that the cap and body Will thus be locked to each other for the reason that the engagement of the sp 1ing` thumb latch of the plate with the notch in the cap precludes the possibility of the projections ot the cap becoming removed troni the otset portions of the bayonet slots. lVhen now it is desired to remove the cap, this can be done by first pressing` the spring thumb latch inwardly until it is released Jfrom the notch and then turning the cap and body in a reverse direction with respect to each other until the projections have moved to portions 22 or' the bayonet slots.

In Figs. 5 and 6 l have disclosed a keyless soclzet shell conforming tothe features of the invention. The cap and body are the same as before, except that I have shown modified forms of protuberances. 24 denotes lugs which are equivalents in the structure of the struck `in projections of Fig. 2 and are adapted to function in similar manner. As shown more clearly in Fig. G, the upper insulating block, denoted by 25, of the keyless socket is provided with cut away portions 2G that are adapted to i'eceive a pin or pins 27 carried by the cap, which, as will be understood, are for the purposeI of precluding the possibility of relative rotation of the shell and block with respect to each other. In the case of the socket of Figs. 2 and 8, the key performs an equivalent function. The spring thumb latch of Fig. 6 is adapted to engage a notch in the cap as before and the cap and body are Lconnected and disconneetet in precisely the same manner.

lVhile I have shown and described the Cap as provided with notches and piotuberances and the body as provided with baylonet slots and a spring thumb latch, it will of course be obvious that the arrangement may be reversed.

lWhat I desire to claim is l. A shell coinprisingtwo members one of which is adapted to be inserted in the other, one of said members being provided with an opening, the other member having slits and the wall between the slits projecting laterally, and a spring latch having a portion thereof .inserted under said pro- `ectin r wall and another )ortion beine' :i D D bowed withthe curved portion of the bow projecting into said opening.

3. A shell comprising` two members one of which is adapted to be inserted in the other, the outer member being provided with an opening, and the-inner member having spaced slits and the wall between the f slits projecting inwardly, and a U-shaped spring latch having one leg thereof inserted under said projecting wall and the other leg projecting into said opening.

el. A shell comprising two members adapted for telescoping engagement, the outer member being provided with a notch and the inner member provided with spaced slits and the wall between the slits projectingv inwardly, and a U-shaped spring latch having one leg inserted under said projecting wall andthe other leg bowed with the curved portionv of the bow extending into the notch in the outer member. In testimony whereof I aflix my 'slgnaf ture.

ToNJns A. BOTH. 

